Question

consider two waves of light, a and b. wave a has a higher frequency than wave b. therefore, wave b must have a longer wavelength. shorter wavelength. higher speed. this cant be determined from the information given. lower speed.

Explanation:

The speed of light in a vacuum is constant. The relationship between the frequency ($f$) and wavelength ($\lambda$) of light is given by the formula $c = f\lambda$, where $c$ is the speed of light. Since $c$ is constant, when frequency is lower (as for wave B compared to wave A), the wavelength must be longer.

Answer:

A. longer wavelength